class Animal:
    def __init__(self,name,kind,age,sex):
        self.age=age
        self.name=name
        self.kind=kind
        self.sex=sex
    def make_sound(self):
        pass
    def basic_info(self):
        print(f"我的名字是{self.name}，今年{self.age}.")
class Cat(Animal):
    def make_sound(self):
        print("喵喵喵")
class Dog(Animal):
    def make_sound(self):
        print("汪汪汪")

dog1=Dog("大黄","小狗","1","女孩")
cat1=Cat("kitty","小猫","2","女孩")

dog1.basic_info()
dog1.make_sound()
cat1.make_sound()
